Razor-sharpening machine.



F. MHGORDON. RAZOR SHARPENING MACHINE. APPLICATION PI'LBD Nov.15, 1912.

'Pm-,ented-F61@l 3, 1914.

z SHEETS-SHEET 1.

W! TIVESSES:

UNITED/.STATES PATENT OFFICE-f FRED M, GORDON, 'or DETnI-nnrcnmm.

Razon-SHARPENING macnrnnf Specification of Letterslatent.

'Application sied N ovemhai'is, .leiaseriaiiio. 731,463.

T du whom I? may concern.'

. Be it known thatl, FRED M. G oRDoN, a' citizen of the United States, residing at Detroit, in' thecounty of lVayne and State of Michigan, have invented certain newand useful lImprovements -in Razor- Sharpening iNIachines, of lwhich the followingis a. speci- This invention'4 relates to machines for sharpening razors` and more especiallyv t0 that class thereof adapted to' receive' the blades of safety razors, and it has Vfor one .0f .its objects the provision of improved means whereby the blades will be carried into contact-with the sharpening device so as-to have a yielding movement and pressure exerted upn the mechanism which controls the movement 0f the blade .relatively to the sharpening media..

' The invention has, furthermore, for its object the provision of a two-part mechafirst member.

vnism whereby the blade holder is cont-rolled,

one partremaining in fixed position relatively to the .operating member, -while the otherA part is movable and adapted to be connected with and disconnected from the The invention has, furthermore, for its object thecombina'tion' with the sharpening devicefand the driving mechanism thereof,

of means whereby the sharpening devices can be driven'only in thefp'ro'per direction,

lshowing the bladeholder closed.y

so` that consequently all danger of cutting the sharpeningdevices through accidental 4retrograde movement thereof will be-obvi- Fig. 2 is a side view of one'of the bladeholders and its operator.l Fig. 3 is an'end 4view thereof. Fig. 4 is a section on line 4:,

Ltof Fig. 2. 'Fig- 5 is' a central vertical section of the machine. FigQG isv an inner end view of the bladeliolde'r, in opened condition. Fig. 74 is a View `similar to Fig. .6

' pedestal.

Briefly I stated, .the I resent oomprises a pair ofspace 'sharpening disks b tween'which the blade holder plays to bring the opposite lfaces of the' razor edge-into en- -gagenienttherewith, alternately. "'The several blade holdersare mounted. on a. table which 'can be turned'around by the operator to bring any one ofl the holders in front of f him for the purpose of re lacin a sha ened blade by a Vdull one.`p Thegtable ciali"- 'ries a motor which through intervening mechanism is connected for' driving the sharpening disks Vandalso for operatingthe razor blade holders at diiferent. rates of speed required by the Work tobe done.

Referring to the drawings, 1 0 denotes.. pedestal or post which is tubular to 'rn't the passage' of a pair A of electric con 'ucfotl 11, -12 which may be connectedat their lower ends by a switch 13, and which terminate an annular contact plate 15., respectively, both platesl being insulated from each other on. a collar 1 6'liXed onfthe upper end of the Loosely mounted on the reduced portion 10 lof the pedestal is the hub 17 of a spider which .supports'a table 18 upon which the -several active elements of the mnchine are carried. These include a motor M f to which electric powerl is'furnished by conductors 20, 21 whicharve connected with the plates 14 and lby resilient Contact brushes 22,23 respectively,` so that'in this manner electric power will be impartedto the motor, no matteiwhich position the table may oc- 'cupi'.

Secured to the lunderside of table is a Aeasing Cv in which is Journaled a shaft 25.hav ing a worm 26 in engagement with a worm 2 gear 27 secured upon ashaft 28 in any Silitable man'ner, as for instance through theintervention of the hub 29 'of a gear 29"which 4isfiiied upon thevshaft 28. and carriesV at its upper end'a pinion 30. The gear 29 drives a pinion lwhich is. rml'y securedtoan arbor 32 journaledin suitable bearings'in the casing and table and having 'at its upper end a pair of disks S S which are spaced apart and have annular -sharpening meinbers s, s" respectively. The pijnion'30 above at their rupper ends in la. central plate 14 and referred to is vin engagement with a gear .35 ,which is attached to a sleeve 3G loose upon theishaft and carrying atits upper end-a cam 37 whereby the bladeholders are Aoperated to bring the opposite sides of the razor blades alternately into contact vwith the sharpening members.

From the foregoing it will be understood that when the spindle 28 is rotated, the sharpening members will be driven at a j greater rate of speed than the cam. f

the motor M Means are provided whereby can'drive Vthe shaft 25 only 1n the right' direction,

l a feature which is importa-nt for, the reason i versedirection, while razor blades are in contact therewith, the latter would dig into the sharpening 4material which preferably l gagement with'a tooth 42 provided on a disk 43 whit/h is tightly secured to the shaft 25,

be shifted on the table, radially shown in Fig. 1.

.40 prises a pair of jaws 50, 51 (see Figs. 6 and Iso i' rbracket 54`(see.Fig. 2).

j run idle without 'the pulley P of the motor being connected by/a belt b with the pulley 40the proper rotation of.whi is indicated by arrow a, in Fig. 5. It wi l therefore be evident thaty if 'for some reason the movement of the mot'or be reversed, or the belt between motor and' pulley 40 should.not be of the proper kind, or crossed, the pulley would simply imparting motion to the shaft A25. 4

The construction of the blade holders, together/with their operatingmechanism is clearly shown in Figs. 2, 3, 6, and 7 and in lthe present instance I employ a series of being adapted to thereof, as The holder proper comthese devices, the holders the "former of which forms an integral art of a. tubular spindle pivot 52 which is journaled in a bearing 53 of the holder v At its other end the spindle pivot carries an arm 55 which is slotted, as at 56, to receive a pin 57 carried by the free end of a resilient crank arm 58, shown therein as a blade spring, and having its lower end rigidly attached tothe cuter end of a'rock spindle 59 which is also j ournaledin thebracket 54. This bracket has alsoa pair of spaced lugsfGO whereby the bracket in its entirety may be moved along lon guide rods 61, the outer ends of which are fixed in a bracket 62, and the inner ends of which are supported by a bracket G3,

bot-h brackets being secured to the top of the table'l8. When the bracket, 54 has been moved outwardly until it nearly approaches the bracket 62, bothjaws 50 and 51 of the, blade holder will be clear' of thesharpening disksas is clearly shown at H in ll`1g. 1. On the 4other hand, when the bracket 54 is slid inwardly until it approaches the vbracket that, if the sharpeningvmembers` S, S should be accidentally driven in a re,

53, the blade will be in position between the sharpenin disks and at the same time the rock spin le 59 will be brought into contact with an actuator having a fixed location on the table and comprislnga rockshaft 64 which is journaled 1n the bracket 63 and has in its face a slot 65 adapted toreceive a pin G6 projecting from the rock spindle 59, so that in this manner the rock-spindle and rock shaft` will always be caused to be connected in the same position relatively to each other.

Oscillatory movement is imparted to the rock shaft 64 by a lever 65 secured to the inner end thereof and being bifurcated to receive antifriction rollers 67, 67 in enga e-` ment with the upper andlower faces of t e cam -87 above referred to, so that thc position of the rock shaft is at all times under direct control of said cam. f'

By referring to Fig. 6 it will be noted that the two jaws50, 51 are 'normally separated or opened by a spring 70 surrounding a holding stud 71 whereby saidbpening movement is limited. The jaws are closed by a cam projection 72 provided on the end of a rod 73 which extends through the spindle 52 and has atits outer end" a finger button 74 whereby it vmay be turned as shown in `Figs. 6 and 7.A

From the foregoing it will be understood that the oscillation of the yrock-spindle 59 will swing the arm 55 of the holder spindle to an amount more than necessary to bring the blade into contact with'thc sharpening disks res ect-ively. By virtue of making the pin 57 at justable4 on the spring 5S, the pressure under which the blade in the holder is presented to the sharpening disks, may be varied as desired.

`In some instances it may grind a blade before it is subjected to the operation of 'the sharpenin disks, and for that reason I' have provi ed a grinding wheel G which is secured to the spindle 32, ready of access to the operator.

Many changes may be made in the general organization as well as in the particular construction of some of the component elements of my improved machine, wit-hout departing from the spirit of the invention, es pecially in the mechanism for safeguarding 1. -Iny a razor sharpening machine, the combinationwith a pair of spaced sharpenan actuator for said holder having av fix -position on the table, means for coperaactuator'and blade tively connecting said holder when the latter is in its inward position, andmeans for operating said actuator.

be necessary to j mg disks, and means for rotating the same,l i a table, a blade holder shiftable on the table combination with a 'pairjoff spaced' sharpening disks, and means'for 'operating the same,

o'atable, a bladelioldr'sliiftable radially on thetable andconprsing axr'ock spindle, an actuator' for saidv holder ,havmga liXed position on the table'and comprising a rock shaft, means 'for cooperatively connectingsaid rock-.spindle and rock shaft when the blade holder is i'n itsl inward 'position,1`= andf means fofr'operating` Isaid rock shaft.

3. .In a razor sharpening machine, the combination with, a pair of 'spaced.sharpen-y ing disks, and means for operating the same, of a table, a blade holdercomprising a rock spindle, guide rods forzshiftably"supporting said blade holder onvth'e table, a rock shaft journaled' ,in a bearing stationaryony the table, means for operating :said rockshaft v' continuously during the operation' of. saidr disks, and means for coperatively connect,v

ing` said rockfsp-in'dle and ro'ck ,shaft when the formeris. in 'its inward position.

4, Inl a razorsharpening machine, the combination 'with a pair of spaced sharpening disks, and means for operating the same, of a' table, a blade' holder vadapted to be shifted'into and 'out' of' o'sition between said disks, said blade hol er comprising 'ai vpair of jaws and' a rock spindle therefor, 'resilient means connecting said rock spindle and jaws, an actuator for said' holder having a fixed position onthe table andcomprising `a -rock shaft, and means for coperativelv connecting) said' ro'clcs'pindle and rock shaft when the lade, holder is in its inward posi tion."

5. In a 'razor sharpening machine, the

. combination with a pair of spaced sharpening disks, and means for operating the same, of a table,I a bladeholder shiftabble on the4 table', an actuator for' said holder'liavinga fixed position onthe table, vand adjustable means for cooperativelyconnect-ing said hold'er and actuator for varyingthe amount '-of rocking inovenientof Vsaid holder bel' tween said'disks, and'lne'ans for'operating said actuator. g n

6;'In a 'razor' sharpening inachine,-the combination with a pair v of spaced sharpen ing disks', and means for o-perating'the same, of'a tabfle, a blade holder shiftable nythe table 'a1icl"coxnp`1:ising'a lrock` spin le', 'an actuator for said holder having a iixedposition von the table and comprising a rock. shaft, and apin-andslot connection be- `tween4 said rock spindle and rock'shaft'and adapted to be placed into `engagement when'- Y the holder is in its inward position 'l 7. In a 'razor sharpening Ailnachine, the combinalimi. with a pair of's'paccd sharpen" ing disks, and means for operating the same, of a table.y a blade holder"comprising a and: havinga'lever, a lrock spindle lliaving a. resilient arrnconnectd with said lever, an actuator for saidholde'r having afixedpos-i'- tion. on the' table and.' comprising a rock shaft, and-means Ifor cooperatively 4connect-- ing saidVV rock shaft and said4 rock spindle when the holder is inits inward' position.'

combination i ith aI pairof spaced sharpening-disks, andrme'a'ns for opcratiri the same, -of' af-j table, a blade holder radial y' movable 'thereong' an actuator ffor. rocking said-blade holder, a rotatable cam for actuating. said holder and actuator for necting the same when thefholder is in its inward' osi-tion, and for disconnecting thb saine W en the holder isin ',ts outward position. f "9. 'In a riizor sharpening machine, the

ing disks and means for operating the same, of a table, 'a .bladeholder comprising 'a bracket slidably supported on the'v table, a vpivot-spindle journale-d l`lin saidgbracket, a

slotted levencarried by 'said pivot-spindle," a rock spindle journaled'insaid bra'c'kety and having an arm, resilient -ineans'for connectin'g said arm and lever, an,.actuat or corni" prising a rock shaft journaled in-a 'bearing *stationary on a table, anda slipzconnlection between .said rpck spindleI and ,rock shaft frconnecting 'i th'ese elements '-.when holder is in 'its inward osition, and -forre- 'leasing said 'rock spinifle Whenth'e' holder is in its` .outward .p itiona lO. -A razor vbla e. holder comprising a a pair of jaws 'at `one end'of said spindle,v a slotted lever on the, otheiend, thereoha' Yrock spindle j'ournaledllin saidubracket sub stantially in parallelism l with and remote from said pivot-spindle, a bladespring carriedjby said rock Sp'indle, a pin adjustably carried 'by saidblade spring and engaging s'aid slot, and means for positively moving' said rock spindle. I 11. A razor blade holder comprisingla braclyet, a 'pivot-spindle journaled f f.;.th"Tin, a pair of jaws atone `end vof 'said spindle.,.fal vslotted lever on the other' end thereof, l'a rock spindle .journaled' in 's'aidbracketzsubf stanti'ally in parallelism with and remote Aronisaid pivot-spindlaa blade spring-j car-y ried by said' rock' spindle, a' pin-adjustably carried by 4,said 'blade spring 'and engaging said slot',- a bifu'rcated lei'er connected with said rock spindle, and a. Acam between the lnan'ches ofsaid lever -forpositiycly mov-ing .the same. j, i

l12. A `razor blade holder comprising a .brac-liet, 4a'pivot-spindle' journal'ed therein, a pair of jaws atloneend Aof saidA spindle, a 'slotted leveron the other' end thereof, 'a

bracket, a pivot-spindle l.joinnaledtherein rock spindle journaled -in' said bracket sub! actuator, 'and a slip connection Dbetween said combination with a pair 'of .spaced sharpen- 8^; In a ra or sharpeningf'macliine, the-` '.100 i bracket,'. a| ,pivot-spindle journaled therein,-

stantially in parallelism with and rem'ote rock spindle in certain predetermined posifroln said pivobspindle, a, blade spring cartions relatively t0 each other. 10 tied by said roel: spindle, a pin adjustably In testimonfy lwhereof I aiix iny signature carried by `saidblade spring land engaging in presence o two Witnesses.

said slot, a b ifnrezlted lever having a air of r FRED M. GORDON. j, spaced studs,r01lers journaled on sai studs, |v lVitnesses:

Ameans forrconnectingsaid leverwth said a cam traveling between said rollers, and. H. D. MACDONALD,

C. F. SCHMELZ. 

